Re: Detecting Mac OS symbolic links with the Unix module ?

Hi,

Unix.stat does follow the link.
Look at Unix.lstat to get information about the link itself.


Ciao,
    Oliver



Zitat von "[email protected] [ocaml_beginners]"  
<[email protected]> (24 Sep 2015 23:15:58 -0700)

> On my Mac I have some aliases pointing to a directory (they appear
> with a circling arrow on them in the Finder).
>   I would like to be able to detect them from the Unix module (or  
> any module, come to that .. .).
>   I tried two things that failed :
>
>   If I use the Unix.stat function on it, the file kind is   
> Unix.S_DIR not Unix.S_LNK
> (I understand that this is because they are Mac symbolic links not  
> Unix symbolic links).
>
>   I thought of defining let has_no_links s=(Unix.readlink(s)=s);;
>
>  but unfortunately this does not work  as it raises exceptions too  
> often. For reasons
>  unknown to me, Unix.readlink raises the Unix.EINVAL ("invalid  
> argument") exception on perfectly valid names such as "/Users/".
>
>  Even if I improve it a little with
>
>   let has_no_links s=try (Unix.readlink(s)=s) with _->false;;
>
> this new function will not do what I want as it will return false on  
> /Users/ for example.
> Any help appreciated.